Experimental Study on Ratio and Performance of Coal Gangue/Bottom Ash Geopolymer Double-Liquid Grouting Material
作者机构：College of Energy and Mining EngineeringShandong University of Science and TechnologyQingdao266590China State Key Laboratory of Coal Mining and Clean UtilizationChina Coal Research InstituteBeijing100013China College of Earth and Mineral SciencesPennsylvania State University—University ParkState CollegePA 16801USA
出 版 物：《Journal of Renewable Materials》 (可再生材料杂志（英文）)
年 卷 期：2023年第11卷第7期
页 面：3073-3089页
核心收录：
学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081901[工学-采矿工程] 0819[工学-矿业工程] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0814[工学-土木工程]
基 金：Funding Statement:The research described in this paper was financially supported by the National Natural Science Foundation of China(No.51974172) Innovation and Technology Program of Universities in Shandong Province,China(No.2020KJH001) National Natural Science Foundation of China(No.52274131) State Key Laboratory of Coal Mining and Clean Utilization(No.2021-CMCU-KF017)
主 题：Coal gangue municipal solid waste sodium silicate double liquid grouting material
摘 要：Mine grouting reinforcement and water plugging projects often require large amounts of grouting *** reduce the carbon emission of grouting material production,improve the utilization of solid waste from mining enterprises,and meet the needs of mine reinforcement and seepage control,a double-liquid grouting material containing a high admixture of coal gangue powder/bottom ash geopolymer was *** setting time,fluidity,bleeding rate,and mechanical properties of grouting materials were studied through laboratory tests,and SEM analyzed the microstructure of the *** results show that the total mixture of calcined gangue does not exceed 60%.And the proportion of bottom ash replacing cement should be within 30%.At the same time,the volume mixture of sodium silicate is 20%.And the water-solid ratio does not exceed *** stability of the slurry prepared under this ratio is *** microstructure of the stone body is dense,and its strength can meet the requirements of rock reinforcement and seepage *** economic and environmental benefits are more significant than the traditional cement-silicate double-liquid grouting material.
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